Weather Advisory
Subject:
Cool to cold in Thailand
Heavy
Rain in the South and Strong wind-waves in the Gulf
(Effect
until 23 November 2025)
No.12 (351/2025)
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During 20-21 November 2025, the strong high-pressure system from
China extend to upper South and the South China Sea. Cool to cold and a decrease
in temperature with strong winds are forecast in the upper country. A decrease
in temperature by 1-2 °C are forecast in the North and the
Northeast. Cold to very cold on the mountain top. People in upper the country should
beware of variable weather, keep healthy due to changeable weather and beware
of fire due to dry air and strong wind. Farmers should prevent for crop damage.
After that, during 22-23 November 2025, the temperature of upper
Thailand will rise with morning fog. Cool to cold still be in the North and the
Northeast. People should beware of passing foggy area.
The rather strong northeast monsoon will prevail over the
Gulf, the South and the Andaman Sea while low pressure
cover the lower Gulf and the lower South with scattered heavy rains and
isolated very heavy rains in the South during 20-23 November 2025. The rather strong wind forces the waves in the Gulf up
to be 2-3 meters high and above 3 meters high in thundershowers while
the waves in the upper Andaman Sea are likely about 2 meters high, 2–3 meters high
offshore and above 3 meters high in thundershowers. People in the South should
beware of heavy to very heavy rains and accumulations that may cause flash
flood and overflows, especially along the waterways near foothills and lowlands.
People along the Gulf shore should beware of inshore surges. All
ships should proceed with caution and keep off thundershowers, small boats in
the Gulf and the Andaman Sea offshore keep ashore during 20-23 November 2025.
This advisory is in effect on 20 November
2025, at 5.00 p.m.
This next issue will be on 21 November
2025, at 5.00 a.m.
(Signed)
Sugunyanee Yavinchan
(Miss Sugunyanee Yavinchan)
Director-General
Thai Meteorological
Department